Suyeong RHIE
HCI Ph.D. Candidate · Rust/Python Engineer · Cognitive UX Researcher
English・日本語
Summary
Ph.D. candidate at JAIST specializing in human-computer interaction, real-time UX systems, and task-switching modeling and simulation.
I design and implement cognitive-aware systems using Rust, Python, and formal modeling tools such as CafeOBJ.
My research focuses on reducing cognitive friction through multimodal feedback in everyday and professional environments.

Building on a strong foundation in formal functional programming (CafeOBJ), currently exploring Haskell through the University of Helsinki's MOOC.
Skills
Languages
Rust, Python, Kotlin, C#, CafeOBJ, Ruby, TypeScript, Haskell (in progress)
Frameworks & Architectures
Tauri, Tokio, Flask, Ruby on Rails, Unity3D
Machine Learning & Vision
PyTorch, OpenCV, Polars
Real-time & Networking
WebRTC, TCP/UDP sockets, MessagePack, Redis
Research & Modeling
CafeOBJ/OTS, ACT-R modeling, HCI methods
Tools & Ops
Ollama, Git, Docker, Jenkins, Nginx, SQL (PostgreSQL/MySQL/SQLite)
Projects
Vision-Based Cooking Assistant
Solo project for M.Phil. thesis.
Smart speaker prototype integrating OpenCV visual context and Picovoice speech interface.
Actor model in Rust used for real-time task coordination. Exploratory study with 9 users.
- GitHub Repository
AR Remote Work System
Developer during internship and collaborative project.
One-to-many AR remote assistance system using MagicLeap 2 and P2P WebRTC(UnityWebRTC).
Developed standalone signaling and optimized real-time video pipeline.
Irastretto
Capstone project creator.
Early capstone project: modular API for social media scrap & share.
Flask + Celery architecture with MQ-based task decoupling.
- GitHub Repository
Nachtbeere Server Platform
Founder and operator (now archived).
Integrated custom game logic with external web services for authentication and in-game content management.
Managed infrastructure including CI pipelines, Dockerized service nodes, and internal tools.
- GitHub Repository
- Architecture overview (pdf)
Experience
Research Assistant
Sep 2024 - Present | AIST, Tsukuba, Japan
Developing a real-time task-switch simulator and cognitive-load modeling system as part of human-factor research in multitasking environments.
Designing and implementing low-latency data pipelines for user simulation and analysis. Collaborating on exploratory LLM/ML pipelines for shared knowledge extraction.
Master's Thesis Researcher (Joint-degree program)
Apr 2022 - Mar 2024 | JAIST & Kanazawa University, Ishikawa, Japan
Proposed and prototyped a vision-based cooking assistant using Rust actor model, OpenCV, and Picovoice.
Conducted formative user studies to investigate the effect of visual context in voice guidance.
Laboratory Rotation (Paleogenomics)
Sep 2022 - Dec 2022 | Kanazawa University, Institute for the Study of Ancient Civilizations
Explored paleogenomic research through practical training in genetic data analysis and ancient DNA extraction.
Gained hands-on experience with Python-based bioinformatics pipelines and real-world sample processing under guidance of Dr. Takashi Gakuhari and Prof. Nozomu Kawai.
Laboratory Assistant (MagicLeap Remote Work System)
Jun 2023 - Sep 2023 | Japan Advanced Institute of Science and Technology (JAIST), Ishikawa, Japan
Designed and developed a one-to-many AR remote collaboration system using MagicLeap 2.
Built a standalone WebRTC infrastructure to eliminate the need for a relay server, improving system responsiveness and scalability.
Laboratory Assistant (Speech Analysis System for Remote Work)
Jun 2023 - Sep 2023 | Japan Advanced Institute of Science and Technology (JAIST), Ishikawa, Japan
Developed an ML-based speech analysis and representation system for enhancing remote work support.
Integrated voice activity features into the remote task environment to assist supervisors in high-load settings.
Technical Intern (AR Remote Work System)
Aug 2022 | Smart Work IoH Team, AIST, Tsukuba, Japan
Improved and extended a remote collaboration AR/VR system using VIVE Pro.
Refactored legacy Websocket networking to standalone P2P UDP, improving frame rate from 20fps to 100+fps.
Added gaze-tracking support and optimized latency-critical components.
Backend Software Engineer
Jan 2017 - Apr 2019 | Plustonic, Seoul, South Korea
Designed and maintained scalable game backend systems for mobile RPGs.
Developed internal translation and game data management tools.
Built and operated infrastructure with Docker, AWS, Redis, and MySQL.
Information Systems Specialist (ROKAF MOS 30010, OR-4)
Jan 2013 - Jan 2015 | Republic of Korea Air Force
Maintained and operated network systems and secure computing environments. 2014 ROKAF Information and Communications Contest (Hacking Defense, 5th place).
Education
Japan Advanced Institute of Science and Technology (JAIST)
Apr 2024 - Mar 2027 (expected) | Ishikawa, Japan
Ph.D. in Knowledge Science (HCI, cognitive modeling, UX research)
JAIST & Kanazawa University (Joint degree Program)
Apr 2022 - Mar 2024 | Ishikawa, Japan
M.Phil. in Transdisciplinary Sciences - Vision-based voice assistant systems
Josai University
Apr 2020 - Mar 2022 | Saitama, Japan
Japanese Language Program (Non-degree)
B.Sc. in Computer Science and Engineering
Mar 2018 - Aug 2019 | Seoul, Korea
Earned through transfer program with early graduation
Publications
Exploring relationship between EMG, confusion and smoothness of work progress in assembly tasks
T.-Y. Wang, S. Rhie, M. Otsuki, H. Kuzuoka, T. Yuizono
Proceedings of the Augmented Humans International Conference (AHs '24) - (ACM 2024)
DOI: https://doi.org/10.1145/3652920.3653042
Languages
Korean
Native
Japanese
JLPT N1 / fluent
English
Professional working proficiency
Awards & Certifications
ROKAF Information and Communications Contest
2014
Hacking Defense - 5th Place
Coursera - Build a Modern Computer from First Principles, From Nand to Tetris (Project-Centered Course)
2021
Certification verify link